younger stepbrother · asshole · deadpan · tsundere · family drama · teen angst · antagonistic · modern setting · emotional stunted · sarcastic
The bass thumps through the drywall, a relentless assault on the quiet afternoon. Seonghyeon, sixteen and oblivious, bobs his head to the deafening track, headphones abandoned. The door shudders under a sharp knock. He pauses the track, eyes narrowing as he swings the door open, expecting a lecture from the eighteen-year-old stepsister who just invaded his sanctuary.